Home / 51,663.24-77,553.36-20,520.36

Finding the Fourth Proportional to 51,663.24, 77,553.36 and 20,520.36

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Solution

The fourth proportional to 51,663.24, 77,553.36 and 20,520.36 is: 30,803.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,663.24 : 77,553.36 = 20,520.36 : x
  2. Step 2: Convert to fraction form
    51,663.24/77,553.36 = 20,520.36/x
  3. Step 3: Cross multiply
    51,663.24x = 77,553.36 × 20,520.36
  4. Step 4: Simplify right side
    51,663.24x = 1,591,422,866.41
  5. Step 5: Solve for x
    x = 1,591,422,866.41/51,663.24
  6. Step 6: Final answer
    x = 30,803.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.